Thoughts
The tendency of the mind is that it ejects what it gets. That is why man feels the rush of thoughts all the time. Thoughts are like the dust which flies with the air but constructs no building because they have no power in them. When you give them power, they become strong like the mound of white ants.
Taken from the book "Complete Works of Ram Chandra, Vol. 3 (1st Indian edn., 1999)", Chapter "1932", pg. 147, by Babuji Maharaj