The phrase "to attend to" means to give one's full attention and care towards something or someone. It can refer to taking action in response to a need, request, or situation. For example, if you are asked to attend to a task, it means that you have been assigned to do it; if you are attending to someone who is sick, it means that you are providing them with care and support. The phrase can also be used figuratively to describe paying attention to something or being aware of it.