When we start meditating, we awaken more of our psychic abilities. We reach an alternate state of consciousness and seem to become visible to those in other dimensions, particularly the astral plane. This is a realm next to the material realm. Spirits will try to make contact. This is like a feeling of spider webs brushing our skin.
When using guided meditations for spiritual journeys, these can be remembered just like real memories. Dreams may become more vivid but may still fade away. With practice, a dream can be remembered for up to 10 minutes and recorded in a book. The reason is, that messages from spirits and our higher self can enter our dreams.
As psychic abilities progress, more useful attributes become unlocked. Depending on the person, this begins as seeing spirits as shapes, flashing lights, or movement at the corner of the eye. As the ability increases more, Extra Sensory Perception may be achieved. This really depends on how much a person can connect with their soul.