Determination is how your body is built to take life in: how you receive nourishment, and underneath that, how you absorb information and experience. It is the first of the four deep transformations in your design, and it works from the body upward. It is carried by the unconscious side of your chart, the part that runs your physical vehicle without ever asking your opinion. When you take things in the way your system is actually built to receive them, physical resistance drops, your energy steadies, and everything downstream, from mood to mental clarity, gets easier. Ra framed it as an experiment rather than a commandment, and it only works on top of living by your Strategy and Authority: if your Authority says no to a change, do not make it.
Your colour is Light, and it sits in the upper half of the six. That changes what it is pointing at. The lower three colours are about the food itself. The upper three are not. Yours is about the situation around you while you eat, and specifically about the light you are sitting in while nourishment goes in. Your body reads the lighting the way another body reads flavour, and that reading decides how well it processes whatever is arriving.
Your arrow points right, the peripheral, receptive side. Let your main meals move towards and past sundown, and shade yourself from direct light when you eat earlier. This runs against most of the world's mealtimes, so find the version your life can hold and notice what changes.
The same shape shows up in how you take in everything else. Your mind may well work better later in the day and in shaded conditions than under bright, direct light. Ra linked the way the body digests with the way the mind makes sense of things. Honour the hours that suit you, and let what you are taking in arrive then.