When I see 5s and 10s in dreams I always see if I can connect it to fingers/hands and/or toes/feet.

If I see 7, I consider the possibility of a week; if I see a number between 1 and 12, the possibility of a particular month and so on. When the dream is referencing chakras, it usually throws in a colour for me. You always need to consider what is happening in your own life and what particular numbers mean to you.

i was given 4 coins by someone.
1 x 1 pound coin
2 x 2 pound coins
1 x 5 pound coin

in the dream the coins were all brand new, shining.
i was fascinated by the 5 pound coin. the idea that i was being given currency that doesn't exist, seemed to suggest possibilities beyond the norm.


in 'real life' the 5 pound coin does exist, but isn't really in circulation as currency.
it's more of a commemorative coin.
It seems positive to me. Coins suggest something you can exchange (your energies?) for something you can use or enjoy but, here, because it's not the usual currency, because it's given to you and because it's probably commemorative, I would look for a symbolism that is specific to you. It may well reference chakras.