Previous studies reported that rendering the fixation point is effective for suppressing visually induced motion sickness (VIMS). This study investigates why the fixation point has a VIMS suppression effect. Gazing-specific-place and gazing-specific-object are two properties of static-fixation points. To clarify which property is responsible for the VIMS suppression effect of fixation points, we employ a moving-fixation point and employ 3D CG content experienced by participants through a head-mounted display (HMD). This study compares the following: no-fixation-point, static-fixation-point, and reciprocating-fixation-point conditions. Each condition is evaluated by a simulator sickness questionnaire (SSQ) and subjective evaluations. Both the SSQ and subjective evaluation results show the VIMS suppression effect and compare it under the reciprocating-fixation-point condition and with the no-fixation-point condition. The gazing-specific-object property might cause a VIMS suppression effect.