Sometimes of course it is your imagination! Not all of what you see out of the corner of your eye is something or someone from the ‘other side’. Often though, it is exactly that; someone from the other side paying a visit. It is more possible to see spirit when you are not looking or are relaxed. Quite often it can appear that something has darted past you and by the time you’ve ‘looked’ it has gone. This simply means you were sufficiently unaware enough to catch a glimpse. This is usually at dusk or in the early hours of the morning. The veil between the two dimensions is thinner at dawn and dusk.