Enoch’s ability to walk with God stemmed from Jesus creating a way for mankind to have a relationship with Him before the world’s foundation. Whilst Adam chose independence, not everyone followed suit, and Enoch’s attentive listening allowed him to walk with God in the spirit.
The path to the tree of life was not blocked by the angels. The fiery sword symbolises refining and purification; those who embrace the refining fire gain access to God. Enoch, choosing the fiery sword path, walked in the realms of Heaven, providing evidence that we do not need to die to function in heaven – in fact we are able to function in heavenly and earthly realms simultaneously.
This is very different to the man-made sacrificial system. It offers direct access through engaging with the fire of God’s presence, as demonstrated by Moses and the elders but rejected by the people of Israel. Before the cross, everyone was spiritually dead in Adam, but going through the fire allowed reconnection with the spirit, changing the dynamics of the relationship between Heaven and Earth.