Aranyakas don't lay much emphasis on rites, ritual and sacrifices but have philosophy and mysticism. Examine the statement focussing on key content of the Aranyakas.

The Aranyakas were written in Forests and are concluding parts of the Brahmans.
Aranyakas don’t lay much emphasis on rites, ritual and sacrifices but have philosophy and mysticism. This is because aranyakas were written mainly for the hermits and students living in the jungles. They lay emphasis not on sacrifices but on meditation. They are in fact, opposed to sacrifices and many of the early rituals. Their stress is on moral values. They form a bridge between way of work (karma marga) which was the sole concern of the Brahmanas and the way of knowledge (gyan marga) which the Upanishads advocated. In other words, Aranyakas are focussed on moral science and philosophy. They also provide the details of the Rishis who lived in jungles.