Hello, which part of your essay are you referring to? (Introduction, Body Paragraphs, Conclusion)? I'm assuming you are talking about body paragraphs since that is the part of your essay where your reasons are explained. I'm also assuming you are discussing the connection between your ideas (reasons) and your thesis. To clarify the connections between your ideas in your body paragraphs, you must explain your evidence. This explanation lies in the elaboration and significance portions of your body paragraphs. In your elaboration, you clarify how and why the quote (evidence) you chose supports your topic sentence. In your significance (last sentence(s) of your body paragraph), you must clarify why the evidence is the highlight of your thesis and why it supports your claim made in your thesis. For example, when a student quotes a scientific study that shows that the sky is blue due to the scattering of blue light, the student cannot write their elaboration like this: "The sky is blue because the sky is blue." Instead, the student should write, "This scientific study shows that the sky is blue because gas molecules in Earth's atmosphere scatter blue light due to its shorter wavelength." If the student is claiming that Rayleigh scattering plays a role in making the sky look blue, then the significance should be written like this: "Rayleigh scattering plays a role in making the sky look blue because when the sun emits its white light, which is made up of a variety of colors, the blue light is scattered by air molecules."
