New-age Ideas . . .
Just because the soul is capable of doing such-and-such doesn't mean it is beneficial (and it may be spiritually harmful). An example is channeling, including trance channeling, and demon possession. There are many kinds of spirit beings in the spirit realm. It is possible to give control of our souls and bodies (via our souls) over to them. This is generally a bad practice except in the case in which a prophet of God is filled with God's Spirit. Usually it is the spirits of the dark side that wish to take control of us.
It is common in new age circles to believe that the universe is a living being, a soul. I suggest something that superficially sounds like this (link) but my views are compatible with Christianity whereas the new age views are not. The important difference is that the new age movement generally doesn't acknowledge the existence of a creator-God with whom we can (and should) have a relationship with — but this is a cornerstone of Christianity. For them, the universe itself is god (pantheism, panentheism, monism).
Some new age practitioners believe that the earth itself (Gaia) is a living being; that it has a soul.
Although people involved with astrology aren't generally aware of it, astrology assumes a spiritual realm in which the influences of the stars and planets (the heavenly bodies) are caused by some kind of living life force operating within each heavenly body — in other words, the heavenly bodies are alive. This is because the heavenly bodies themselves don't have a way of causing the kinds of effects claimed by astrology. Whatever the effect is (if there even is an effect) it must be caused by spirit beings. For more, read Astrology.
Many spiritual and religious systems (including gnosticism and the new age movement) have the idea that the spirit world is good but the material world is bad. Some pseudo-christian groups even claim that the Christ spirit came upon Jesus at his baptism and departed from him before his crucifixion. This is not what Christianity teaches.
Most religious systems have a central teaching regarding desire. Buddhism teaches that finally eradicating desire is the ultimate goal in life which frees us from suffering. Hinduism teaches that becoming free from attachments to this material world is the solution to the soul's ultimate dilemma. Christianity teaches that we must live virtuously by resisting the temptations caused by concupiscence, by our sinful nature. In my system the appetites of the soul are a major aspect of the soul's existence.
Some of the teachings of non-Christian religious and spiritual systems regarding the soul have elements of truth. Some of these . . .
The difficulties with dabbling in these are . .