Dreaming of a tidal wave is symbolic of an incoming force crashing and devastating you. Tidal waves are enormous waves that come crashing in after building up. When tied in with life, this may mean that you are ignoring or putting off troubles, but like a tidal wave, it will build up and continue to amount. Eventually, it just becomes a great giant wave that crashes into you. Tidal waves are a monstrous force, just like the troubles or problems that may plague your life. It is best not to let them grow to such an immense size, as when it comes crashing down the effects are much greater.
Envisioning a tidal wave parallels the notion of letting your negative emotions be bottled up inside for too long and finally exploding. If you feel like there are some issues constantly putting you down, it’s better to talk to others about it, then to hide it all in. On the other hand, a tidal wave wiping away everything could be symbolic of a new and fresh start for you. The slate is clean and just waiting for you to draw on it.