nightmare about tidal waves

hello every one,

this is my first post after watching a horrible dream just an hour ago. currently i am living in an apartment with my friends for like a month. from the window of my room i can watch the sea and the beach. its a perfect view watching a calm sea.

This morning i dreamt that because of full moon the waves are getting higher (in my dream i call it tidal waves) im not afraid of it and i believe it will pass. but the waves increase gradually. I see that my whole family is also living with me (i.e. my parents, siblings, aunts and cousins).
Now im getting worried that the waves will reach my apartment (in fifth floor) and will drown my whole family and me. my family is not at all worried and they believe it will pass as the night is over. i can clearly sea the overwhelming waves and from far away and try to calculate how much destruction they would cause and i keep informing my family who is not concerned or afraid.
As the waves (which are not destructive) are getting higher water starts entering through my window slowly and I try to convince my family to shift in the 10th floor where my sister and her husband are living (only in dream they don't live there in reality) but my family is calm and relax about it.
all of a sudden i remember some quote that if i recite a particular Holy verse the sea would get back to its place. then i start reciting and suddenly the waves get normal and the sea is slowly getting back to its place. i tell my family how powerful the verse is but they are not very much shocked of impressed as they were not concerned even before. they are back to their normal chores as if nothing happened.

please tell me what my dream means. i am extremely worried about it :(