A whale in a dream often represents emotion on a scale that's hard to hold -- something vast and old, moving beneath the surface of everyday awareness. Encountering a whale can reflect being overwhelmed by feelings too large to process at once, while swimming calmly alongside one may suggest you're learning to coexist with that depth instead of fighting it. Whales ask you to slow down, not resolve everything.
Good planets, afflicted of the infortunes from the sixth or twelfth houses, signify ill. - William Lilly (1602.-1681.)