When you are in nature you look into the scene because you have depth perception. You can even estimate the distance to something by using your depth perception. Naturally, you know the depth of the scene you are photographing because you are physically there. Yet, others looking at your image are looking at it from their homes, or wherever they are when they see your image. They are also looking at a flat image (computer screen, print, etc.). Therefore they do not see the depth you saw.

          Photographers must somehow help viewers to also see the depth that we saw when we made the image. We must attempt to make the viewer look into the scene rather than at a flat scene. As we have stated before, one method of achieving the illusion of depth is to have lines in the images because the human eye tend to follow lines. Be following the lines they are looking into the image, to wherever the lines are pointing. Here is an example:

Firstly, the larger rock on the bottom right form a line to the logs and secondly, the fallen logs form a line pointing into the scene. Thirdly, the flowing river forms a line that now takes the viewer's eyes way into the image. Even though this is a flat image it appears as if there is depth because of the lines taking the viewer into the image.

Once again the water forms a line that takes the viewer's eyes way into the image. The log also acts as a pointer to suggest to the viewer where to look. At the same time the log creates foreground interest.

          The next time you are in nature, just forget about the grand scene in front of you for a little while and look for lines. Water, rocks, and logs often work well. Do your best to create depth. Here is a line of rocks: