Ancient times The infinity was originally known as the Lemniscate, meaning ‘ribbon’, by ancient Greek mathematicians and philosophers. The idea strives form The Ouroboros, an ancient symbol depicting a serpent biting its own tail. It represents the infinite immortality, continuity, self-fertilization and eternal return. So already we see a connection in the meaning but coming from a place that we are less familiar with.
Spirituality
Although the infinity symbol has become a secular mathematical/scientific symbol for infinity in numbers and eternal time & space, the symbol derives from a religious place, which has enabled us to determine such spiritual and positive meanings.