Thx for the answers!

I will try to meet him again, should not be so very hard to summon I think.
The thing is, he acted in another way than other DCs I remember Ive met before. It was just like he was mocking/teasing me by smiling when he answered my questions. This lucid dream took place in my own home, I never meet people I dont know from real life in my "at home lucid dreams", if I not summon them myself or walk/fly out of the apartment.

Have you meet your dream guides?