We often have a sense of greater and smaller, and in spirituality this can be that some people or beings are spiritually more advanced than us and some could be considered less advanced. For example, some people may have a guru that they consider spiritually advanced, and in that sense worth following and listening to. They may see others who appear to have no spiritual outlook on life and naturally consider them to be less spiritually advanced.
What do we mean by 'spiritually advanced'? We may mean more in touch with the spiritual side of life, more in touch with God or the divine, or more aware of the infinite nature of being. Some people may be considered more spiritual because they go to church, a mosque or temple more often than others. But spiritually advanced implies that they are more in touch with the spiritual realms beyond what we see as the material, physical world.
It may also be considered that there are beings more spiritually advanced than humans. That is very likely. Earth's profusion of life forms does not appear by chance alone. As I've explained elsewhere, chance is based on order. There is an orderly randomness. And there is an underlying energy in the universe, which we could call a spiritual energy. It is this energy that forms stars, planets and life forms within planets. So Earth will not be the only planet in the universe that has developed a profusion of life forms. It's likely also that similar life forms have evolved on other planets, or indeed in other realms. The pattern of 'many from one' is expressed throughout the universe, so it is inevitable that life forms arise having a central body and limbs that extend outwards from the body. In other words, humanoid life forms are to be expected, with legs, arms, head, fingers and toes.
So with the likelihood of other planets like Earth in the universe, that means there are probably beings further along the evolutionary path than humans. It is likely there are beings physically, technically, mentally and spiritually more advanced than humans, just as there are animals on this planet less advanced in those ways.
We're talking here about spiritually advanced humans and non-human intelligent beings. Some may say that their consciousness is more advanced, and there is something in that. But there is an important developmental leap. This leap is from the apparently finite to the infinite. What the spiritually advanced being realises is that the world and its own being are not finite. The spiritually advanced being is not limited by any form it may seem to take. It is a freeing of the mental limits of identity.
When we see a spiritually advanced being, we see a life form, but that is not who they are. When they see you they do not see you as a life form. They see the One Infinite Being. All that they know, see and experience is the One Infinite Being. There is no other being. So it is the same for you. Mentally there may be a labelling and conceptualising of separate life forms, but there is no real separation. All that you ever see, know or experience is the One Infinite Being. The difference in the spiritual development is the recognition of Oneness. Mentally identifying the world as separate gives rise to selfish urges and the need to survive and to feel content and complete.
Spiritual advancement is in the dropping of this sense of separation, and becoming the selfless being that we are. It doesn't mean that we feel whole or complete. It's not a feeling, as such. Rather it is more that the feelings of being incomplete dissolve and the natural state of completeness and freedom is revealed. This is then expressed more clearly through the advanced spiritual life form.
So, an important thing to recognise here is that although we may see a spiritually advanced being and wish to be more like them, they are none other than our own being, the Infinite One Being. Equally, those that may appear less spiritually advanced are also our own being. Any spiritual development, great or small, is less than our innate Beingness. All spiritual development, and indeed the whole expression of the universe, including the more subtle realms, is a play of evolution and development within the Great Infinite One Being, who remains timelessly complete.