"Thistles on borderland / a man walks past and he sings / the hills are far away"
What orientates you?
Where can you find your connection here? What reminds you that you are 'here' and 'now', but also reminds you that also you come from 'elsewhere', with other life experiences, cultural values and memory.
Collective memory and knowledge has a particular focus in each culture. Something that you share among others through life experience. If someone asked you to recount particular lyrics you might not be able to answer. But if that person began to sing, you may be reminded by their performance of the song, and join in.