Explaining personal signs to another, to fully understand, is VERY hard to do.
I think the reason for this difficulty is because, if your vision had the ability to make others believers, the holy spirit's guidance wouldn't be needed.
I believe that personal signs and directions are revealed to all who seek God daily.....To the degree of what they mean can only be interpreted by the one who they make sense to.
I remember what a man in his 90's said to me when I was 26 or so.......I asked him, "Give me something to live by"
His response was, "Pay Attention!"......At 26 I was like, huh? That is the best that 90+ years has for me?
At age 40, I understand.