Symbolic dreams are usually very coherent, one remembers everything, to the last detail; it is more living, more real, more intense than the material life, and it is fairly rare. When one returns from a symbolic dream, one remembers everything, all the details, and feels that one has lived for those moments a much intenser and truer life than the physical one. And it leaves a very deep impression upon you. This does not happen very often, you know. Usually it comes when it is very necessary.
You are describing the action of the ordinary existence, not the yoga. Yoga is a seeking (not a mental searching), it is not experimenting in contraries and contradictories. It is the mind that does that and the mind that analyses. The soul does not search, analyse, experiment — it seeks, feels, experiences.
The only grain of truth in your statement is that the yoga is very usually a series of ups and downs till you get to a certain height. But there is a quite different reason for that — not the vagaries of the soul. On the contrary, when the psychic being gets in front and becomes master, there comes in a fundamentally smooth action and although there are difficulties and undulations of movement, these are no longer of an abrupt or dramatic character.