Let take a look at Dream Symbols from Ih to Iz.
Illness, sickness : 1. Feeling uneasy and uncomfortable.
Incest : Related to the denied aspects of self. Possibly denotes a desire or in the  process of integrating that denied aspect.
Insanity : 1. Possible indicative of feeling not being able to cope with something.
2. Trying to avoid [...]

Dream Symbols  from Ia to Ig are explored in this page
Ice berg could signify that something or some issue that is more complex than what it seems to be.
Ignition : 1. Associated with passion and enthusiam. 2. Symbolic of a new significant phase in life.
More dream symbol will be added as time goes by.