Some thinkers consider space as an own entity, space as a container.
Nevertheless this idea is rejected by others such as Martin Heidegger and Immanuel Kant.
What I have understood is that space is relational, i.e. it is a relation between things and subjective, that is, space is not an objective reality but instead an intellectual construct, according to Immanuel Kant. In this account, the actor’s feelings are central, and space receives a more psychological dimension.
Heidegger rejects the idea of space being an independent entity and we can also notice some Kantian influence. However, Heidegger does not characterise space as either subjective or objective, but instead he puts focus on people’s actions. According to him, it is through actions that we come to understand spatiality.