Spiritually, air signifies the Breath of Life and is the second element in the four creative elements of Fire, Air, Water and Earth, which together are part of the manifestation. Air represents the intellect and psychologically allows us to bridge the gap between the spiritual realm and the physical. As breath, it is a necessary part of life which tends not to be thought about until there is a problem. In dreams we will become conscious of air as a breeze or a wind of some sort. From a pragmatic point of view, air is a force which supports and surrounds all that we do, so in dreams to be conscious of bellows or a pump suggests that we need to use strategy and power to achieve our ends. Consult the entry for Wind for further clarification.